CN101486943A - Automobile brake fluid and preparation thereof - Google Patents
Automobile brake fluid and preparation thereof Download PDFInfo
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- CN101486943A CN101486943A CNA2009100963770A CN200910096377A CN101486943A CN 101486943 A CN101486943 A CN 101486943A CN A2009100963770 A CNA2009100963770 A CN A2009100963770A CN 200910096377 A CN200910096377 A CN 200910096377A CN 101486943 A CN101486943 A CN 101486943A
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- butyl ether
- propylene glycol
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- many propylene
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Abstract
The invention discloses automobile brake fluid and a preparation method thereof, which is prepared by the raw materials of the following weight percentages: 10 to 38 percent of multi-propandiol butyl ether, 60 to 86 percent of multi-propandiol butyl ether borate, 2 to 7 percent of compound additive, and the preparation method thereof. The automobile brake fluid has avirulence, safe reliability, environmental protection and excellent physical and chemical properties, and becomes a product of low cost and high industrialization, more security and reliable and having competitive advantages in price and quality.
Description
Technical field
The present invention relates to a kind of motor vehicle brake fluid and preparation method thereof.
Background technology
At present, China motor vehicle brake fluid market is broadly divided into three, it at first is the used braking fluid of medium-to-high grade car, be generally the import braking fluid, its main technical data is about 260 ℃ of equilibrium reflux boiling points, about 165 ℃ of wet equilibrium reflux boiling points, and kinematic viscosity is about 1000-1300 in the time of-40 ℃, though its index has surpassed China braking fluid national standard HZY4, compare with the HZY5 standard and also have certain gap.Secondly the braking fluid great majority that adopt at present of domestic automobile manufacturer only reach the HZY3 standard, seldom adopt the braking fluid of HZY4 standard, so also just do not reach the standard of HZY5 greatly, have obvious gap so compare with the import braking fluid.And the braking fluid of selling in domestic automobile component market major part is substandard product, and wherein 100 ℃, 168 hours volatility test is defective to be in the great majority, and its major cause is backward in technique.And traditional braking fluid generally to adopt oxyethane and methyl alcohol be main starting raw material, it has toxicity, poor stability, the cost height, physics and chemical property are not good enough.
Summary of the invention
The object of the present invention is to provide a kind of motor vehicle brake fluid and preparation method thereof, the present invention has nontoxicity, the safe reliability and the feature of environmental protection, good physics and chemical property, it is low to make it become a kind of cost, industrialization height, the product that safer, reliable, price and quality all have advantage.
In order to achieve the above object, technical scheme of the present invention is:
A kind of motor vehicle brake fluid, formulated by following raw materials by weight percent:
Many propylene glycol butyl ether 10-38%;
Many propylene glycol butyl ether boric acid ester 60-86%;
Composite additive 2-7%.
A kind of preparation method of motor vehicle brake fluid comprises following processing step: at first be to react synthetic many propylene glycol butyl ether with propylene oxide and propyl carbinol in the presence of catalyzer; Being to utilize many propylene glycol butyl ether and the synthetic many propylene glycol butyl ether boric acid ester of acid reaction then, is the preparation of composite additive again; Then with many propylene glycol of synthetic butyl ether; Many propylene glycol butyl ether boric acid ester and the composite additive for preparing stir at normal temperatures and pressures, filter and form motor vehicle brake fluid by above-mentioned weight percent.
The synthetic method of described many propylene glycol butyl ether is: in reactor, drop into the material of following parts by weight, 400 parts of propyl carbinols, 1 part of boron trifluoride one ether, be warming up to 100 ℃ then after 520 parts in adding oxyethane; Controlled temperature is 100 ℃-150 ℃ in reaction process, and pressure is 0.2-0.5Mpa, and the reaction times is 8-10 hours, and reaction finishes the back and adds 10 parts of neutralizing agent sodium butylates, 10 parts of discoloring agent activated carbon, in and 1 hour after-filtration make many propylene glycol butyl ether.
The synthetic method of described many propylene glycol butyl ether boric acid ester is: the material that drops into following parts by weight in reactor, at first be 800 parts of many propylene glycol butyl ether of preparing, 150 parts of boric acid, 1 part in sulfuric acid, heat temperature raising to 130 ℃ begins reaction then, in reaction process, controlled temperature is at 130 ℃-180 ℃, and the reaction times is 8 hours; Reaction finishes back adding sodium butylate and neutralizes for 10 parts, and the discoloring agent activated carbon carries out decolorization filtering for 10 parts and makes many propylene glycol butyl ether boric acid ester.
Described composite additive comprises the material of following parts by weight: 250 parts of bis-naphthols, 300 parts of hexahydroaniline, 250 parts of alkyl-thio-phosphates, 200 parts of sodium tetraborates; Above-mentioned additive is mixed composite additive at normal temperatures and pressures.
Beneficial effect of the present invention is: it is starting raw material that product of the present invention adopts propylene oxide and propyl carbinol, comparing braking fluid production at present both at home and abroad, generally to adopt oxyethane and methyl alcohol be the starting raw material synthetic product of leading, has nontoxicity, the safe reliability and the feature of environmental protection; Secondly product of the present invention has good physics and chemical property, the brake fluid equilibrium reflux boiling point that makes of the present invention wherein〉260 ℃, wet equilibrium reflux boiling point〉180 ℃, kinematic viscosity in the time of-40 ℃＜900 have good non-corrosibility and excellent compatibleness to all kinds of metal-rubbers.Performance index have surmounted national Brake Fluid Standard HZY5 index.Be that to have a cost low in addition, the characteristics that industrialization is high, starting material of the present invention and production cost of the present invention are all low than existing product, and the technological operation performance is safer, reliable, price and quality all have advantage.
Embodiment
Embodiment 1
A kind of motor vehicle brake fluid of present embodiment indication, 1) at first be in the presence of catalyzer, to react synthetic many propylene glycol butyl ether with propylene oxide and propyl carbinol; Drop into propyl carbinol 400Kg in reactor, boron trifluoride one ether 1Kg adds oxyethane 520Kg after being warming up to 100 ℃ then; Controlled temperature is 100 ℃-150 ℃ in reaction process, and pressure is 0.2-0.5Mpa, and the reaction times is 8-10 hours, and reaction finishes the back and adds neutralizing agent sodium butylate 10Kg, makes many propylene glycol butyl ether with 1 hour after-filtration among the discoloring agent activated carbon 10Kg.2) in reactor, drop into the many propylene glycol butyl ether 800Kg prepare, boric acid 150Kg, sulfuric acid 1Kg, heat temperature raising to 130 ℃ begins reaction then, and in reaction process, controlled temperature is at 130 ℃-180 ℃, and the reaction times is 8 hours; Reaction finishes back adding sodium butylate 10Kg and neutralizes, and discoloring agent activated carbon 10Kg carries out decolorization filtering and makes many propylene glycol butyl ether boric acid ester.3) composite additive comprises: bis-naphthol 250Kg, hexahydroaniline 300Kg, alkyl-thio-phosphate 250Kg, sodium tetraborate 200Kg; Above-mentioned additive is mixed composite additive at normal temperatures and pressures.4) with many propylene glycol of synthetic butyl ether; Many propylene glycol butyl ether boric acid ester and the composite additive for preparing are by following weight percent: many propylene glycol butyl ether 10%; Many propylene glycol butyl ether boric acid ester 86%; Composite additive 4%.Stir at normal temperatures and pressures, filter and form motor vehicle brake fluid.
Embodiment 2
A kind of motor vehicle brake fluid of present embodiment indication, 1) at first be in the presence of catalyzer, to react synthetic many propylene glycol butyl ether with propylene oxide and propyl carbinol; Drop into propyl carbinol 400Kg in reactor, boron trifluoride one ether 1Kg adds oxyethane 520Kg after being warming up to 100 ℃ then; Controlled temperature is 100 ℃-150 ℃ in reaction process, and pressure is 0.2-0.5Mpa, and the reaction times is 8-10 hours, and reaction finishes the back and adds neutralizing agent sodium butylate 10Kg, makes many propylene glycol butyl ether with 1 hour after-filtration among the discoloring agent activated carbon 10Kg.2) in reactor, drop into the many propylene glycol butyl ether 800Kg prepare, boric acid 150Kg, sulfuric acid 1Kg, heat temperature raising to 130 ℃ begins reaction then, and in reaction process, controlled temperature is at 130 ℃-180 ℃, and the reaction times is 8 hours; Reaction finishes back adding sodium butylate 10Kg and neutralizes, and discoloring agent activated carbon 10Kg carries out decolorization filtering and makes many propylene glycol butyl ether boric acid ester.3) composite additive comprises: bis-naphthol 250Kg, hexahydroaniline 300Kg, alkyl-thio-phosphate 250Kg, sodium tetraborate 200Kg; Above-mentioned additive is mixed composite additive at normal temperatures and pressures.4) with many propylene glycol of synthetic butyl ether; Many propylene glycol butyl ether boric acid ester and the composite additive for preparing are by following weight percent: many propylene glycol butyl ether 38%; Many 60%; Composite additive 2%.Stir at normal temperatures and pressures, filter and form motor vehicle brake fluid.
Embodiment 3
A kind of motor vehicle brake fluid of present embodiment indication, 1) at first be in the presence of catalyzer, to react synthetic many propylene glycol butyl ether with propylene oxide and propyl carbinol; Drop into propyl carbinol 400Kg in reactor, boron trifluoride one ether 1Kg adds oxyethane 520Kg after being warming up to 100 ℃ then; Controlled temperature is 100 ℃-150 ℃ in reaction process, and pressure is 0.2-0.5Mpa, and the reaction times is 8-10 hours, and reaction finishes the back and adds neutralizing agent sodium butylate 10Kg, makes many propylene glycol butyl ether with 1 hour after-filtration among the discoloring agent activated carbon 10Kg.2) in reactor, drop into the many propylene glycol butyl ether 800Kg prepare, boric acid 150Kg, sulfuric acid 1Kg, heat temperature raising to 130 ℃ begins reaction then, and in reaction process, controlled temperature is at 130 ℃-180 ℃, and the reaction times is 8 hours; Reaction finishes back adding sodium butylate 10Kg and neutralizes, and discoloring agent activated carbon 10Kg carries out decolorization filtering and makes many propylene glycol butyl ether boric acid ester.3) composite additive comprises: bis-naphthol 250Kg, hexahydroaniline 300Kg, alkyl-thio-phosphate 250Kg, sodium tetraborate 200Kg; Above-mentioned additive is mixed composite additive at normal temperatures and pressures.4) with many propylene glycol of synthetic butyl ether; Many propylene glycol butyl ether boric acid ester and the composite additive for preparing are by following weight percent: many propylene glycol butyl ether 23%; Many 70%; Composite additive 7%.Stir at normal temperatures and pressures, filter and form motor vehicle brake fluid.
Embodiment 4
A kind of motor vehicle brake fluid of present embodiment indication, 1) at first be in the presence of catalyzer, to react synthetic many propylene glycol butyl ether with propylene oxide and propyl carbinol; Drop into propyl carbinol 400Kg in reactor, boron trifluoride one ether 1Kg adds oxyethane 520Kg after being warming up to 100 ℃ then; Controlled temperature is 100 ℃-150 ℃ in reaction process, and pressure is 0.2-0.5Mpa, and the reaction times is 8-10 hours, and reaction finishes the back and adds neutralizing agent sodium butylate 10Kg, makes many propylene glycol butyl ether with 1 hour after-filtration among the discoloring agent activated carbon 10Kg.2) in reactor, drop into the many propylene glycol butyl ether 800Kg prepare, boric acid 150Kg, sulfuric acid 1Kg, heat temperature raising to 130 ℃ begins reaction then, and in reaction process, controlled temperature is at 130 ℃-180 ℃, and the reaction times is 8 hours; Reaction finishes back adding sodium butylate 10Kg and neutralizes, and discoloring agent activated carbon 10Kg carries out decolorization filtering and makes many propylene glycol butyl ether boric acid ester.3) composite additive comprises: bis-naphthol 250Kg, hexahydroaniline 300Kg, alkyl-thio-phosphate 250Kg, sodium tetraborate 200Kg; Above-mentioned additive is mixed composite additive at normal temperatures and pressures.4) with many propylene glycol of synthetic butyl ether; Many propylene glycol butyl ether boric acid ester and the composite additive for preparing are by following weight percent: many propylene glycol butyl ether 30%; Many 65%; Composite additive 5%.Stir at normal temperatures and pressures, filter and form motor vehicle brake fluid.
Claims (5)
1, a kind of motor vehicle brake fluid is characterized in that, and is formulated by following raw materials by weight percent:
Many propylene glycol butyl ether 10-38%;
Many propylene glycol butyl ether boric acid ester 60-86%;
Composite additive 2-7%.
2, a kind of preparation method of motor vehicle brake fluid as claimed in claim 1 is characterized in that comprising following processing step: at first be to react synthetic many propylene glycol butyl ether with propylene oxide and propyl carbinol in the presence of catalyzer; Being to utilize many propylene glycol butyl ether and the synthetic many propylene glycol butyl ether boric acid ester of acid reaction then, is the preparation of composite additive again; Then with many propylene glycol of synthetic butyl ether; Many propylene glycol butyl ether boric acid ester and the composite additive for preparing stir at normal temperatures and pressures, filter and form motor vehicle brake fluid by above-mentioned weight percent.
3, the preparation method of motor vehicle brake fluid as claimed in claim 2, the synthetic method that it is characterized in that described many propylene glycol butyl ether is: the material that drops into following parts by weight in reactor, 400 parts of propyl carbinols, 1 part of boron trifluoride one ether adds 520 parts in oxyethane after being warming up to 100 ℃ then; Controlled temperature is 100 ℃-150 ℃ in reaction process, and pressure is 0.2-0.5Mpa, and the reaction times is 8-10 hours, and reaction finishes the back and adds 10 parts of neutralizing agent sodium butylates, 10 parts of discoloring agent activated carbon, in and 1 hour after-filtration make many propylene glycol butyl ether.
4, the preparation method of motor vehicle brake fluid as claimed in claim 2, the synthetic method that it is characterized in that described many propylene glycol butyl ether boric acid ester is: the material that drops into following parts by weight in reactor, at first be 800 parts of many propylene glycol butyl ether of preparing, 150 parts of boric acid, 1 part in sulfuric acid, heat temperature raising to 130 ℃ begins reaction then, in reaction process, controlled temperature is at 130 ℃-180 ℃, and the reaction times is 8 hours; Reaction finishes back adding sodium butylate and neutralizes for 10 parts, and the discoloring agent activated carbon carries out decolorization filtering for 10 parts and makes many propylene glycol butyl ether boric acid ester.
5, the preparation method of motor vehicle brake fluid as claimed in claim 2 is characterized in that described composite additive comprises the material of following parts by weight: 250 parts of bis-naphthols, 300 parts of hexahydroaniline, 250 parts of alkyl-thio-phosphates, 200 parts of sodium tetraborates; Above-mentioned additive is mixed composite additive at normal temperatures and pressures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100963770A CN101486943B (en) | 2009-02-26 | 2009-02-26 | Automobile brake fluid and preparation thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100963770A CN101486943B (en) | 2009-02-26 | 2009-02-26 | Automobile brake fluid and preparation thereof |
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| Publication Number | Publication Date |
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| CN101486943A true CN101486943A (en) | 2009-07-22 |
| CN101486943B CN101486943B (en) | 2012-07-11 |
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| CN2009100963770A Expired - Fee Related CN101486943B (en) | 2009-02-26 | 2009-02-26 | Automobile brake fluid and preparation thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619258B (en) * | 2009-07-29 | 2014-05-14 | 湘潭大学 | Method for preparing boric acid ester automobile braking fluid with high performance |
| CN107760408A (en) * | 2017-11-13 | 2018-03-06 | 厦门大学 | A kind of borate basal liquid for high-grade brake fluid |
| CN108931525A (en) * | 2017-05-23 | 2018-12-04 | 通用汽车环球科技运作有限责任公司 | The Rapid identification of brake fluid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037276C (en) * | 1994-07-11 | 1998-02-04 | 北京化工大学 | Method for preparing borate-type hydraulic-brake liquor for car |
| CN1315494A (en) * | 2000-03-24 | 2001-10-03 | 朱国树 | High-grade braking liquid for car and its preparing process |
| CN1207373C (en) * | 2000-12-01 | 2005-06-22 | 谭永年 | Braking liquid of car and its preparing process |
-
2009
- 2009-02-26 CN CN2009100963770A patent/CN101486943B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619258B (en) * | 2009-07-29 | 2014-05-14 | 湘潭大学 | Method for preparing boric acid ester automobile braking fluid with high performance |
| CN108931525A (en) * | 2017-05-23 | 2018-12-04 | 通用汽车环球科技运作有限责任公司 | The Rapid identification of brake fluid |
| CN107760408A (en) * | 2017-11-13 | 2018-03-06 | 厦门大学 | A kind of borate basal liquid for high-grade brake fluid |
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| Publication number | Publication date |
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| CN101486943B (en) | 2012-07-11 |
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